Bone Modeling

It is a surface-specific activity (apposition or resorption) that produces a net change in the size and/or shape of a bone after initial bone formation in the embryonic or initial healing stage . It is an uncoupled process , that is   bone structure alterations occur by independent action of osteoblasts and osteoclasts.  Modeling represents a process that allows a change in initial bone architecture. It has been suggested that external demands such as load may initiate modeling. Therefore, it means that bone resorption and formation occur on different surfaces.